Rear bumper for automobile



FIG. 1 is a right-front, perspective view of a rear bumper for automobile of my new design;

FIG. 2 is a front view of my new design;

FIG. 3 is a top view of my new design;

FIG. 4 is a bottom view of my new design;

FIG. 5 is a left-side view of my new design; and,

FIG. 6 is a right-side view of my new design.

The rear of the bumper is not seen during ordinary use and forms no part of the claimed design. 

The ornamental design for a rear bumper for automobile, as shown and described. 